What physicists mean when they say 1+2+3+... = -1/12pic.twitter.com/Noj5pEf1Ym
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I like this explanation very much. I have always read there's an analytic continuation involved, is it concealed here in the series S_epsilon?
Yes and no, in a way..the expansion around epsilon isolates the pole structure in a way similar to an analytic function being integrated